All MIBs › CROUTE-MIB › drIpInterfaceBroadcastAddr
drIpInterfaceBroadcastAddr
Module: CROUTE-MIB
OID (symbolic): CROUTE-MIB::drIpInterfaceBroadcastAddr
OID (numeric): 1.3.6.1.4.1.81.31.6.1.1.7
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: The value of the least-significant bit in the IP broadcast address used for sending datagrams on the (logical) interface associated with the IP address of this entry. For example, when the Internet standard all-ones broadcast address is used, the value will be 1. This value applies to both the subnet and network broadcasts addresses used by the entity on this (logical) interface.
What is drIpInterfaceBroadcastAddr?
This value records the least-significant-bit convention used for the IP broadcast address on this logical interface, such as 1 when the standard all-ones broadcast address is in effect. It matters because some legacy IP stacks use all-zeros broadcast addressing instead of all-ones, and mismatches between devices on the same subnet can cause broadcast packets to be silently dropped or misdirected. For example, if drIpInterfaceBroadcastAddr reads 1 for the 192.168.1.0/24 interface, the router is using 192.168.1.255 as its broadcast address for both subnet and network broadcasts.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.81.31.6.1.1.7 snmpwalk -v2c -c public <target> CROUTE-MIB::drIpInterfaceBroadcastAddr
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.81.31.6.1.1.7.1 snmpget -v2c -c public <target> CROUTE-MIB::drIpInterfaceBroadcastAddr.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.81.31.6.1.1.7.1 i <value>
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OID Breakdown
Upper-level ancestors (7 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.81 | lannet | GEN-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.81.31 | croute | CROUTE-MIB |
| 1.3.6.1.4.1.81.31.6 | drIpRoute | CROUTE-MIB |
| 1.3.6.1.4.1.81.31.6.1 | drIpInterfaceTable | CROUTE-MIB |
| 1.3.6.1.4.1.81.31.6.1.1 | drIpInterfaceEntry | CROUTE-MIB |
| 1.3.6.1.4.1.81.31.6.1.1.7 | drIpInterfaceBroadcastAddr | CROUTE-MIB |